baber/WOPTO huggingface dataset:
Patent GB-384456-A (GB)
Abstract: 384,456. Cables; cable joints. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Shanklin, G. B. ; 109, Union Street, Schenectady, New York, U.S.A.) Dec. 30, 1931, No. 36006. Convention date, Dec. 30, 1930. [Classes 36 and 38 (i).] In an oil-filled cable system, the cable 10 is formed of sections which are united by joints 11 which contain semi-stops which prevent the free flow of oil between the sections but allow of seepage. Fig. 2 illustrates a semistop joint, cork 12 being held in clamps 13 between the insulation t4 on the conductor and the inner wall of the joint casing. Each end of the joint 11 is provided with a semistop. The adjacent ends of two cable sections are connected by a byepass 15 which may be of thin metal so that it may be pinched off to close it. Valves 16 allow of flow control through the byepass which may connect with the joint 11 through a pipe 15b. Spaced reservoirs 17 are connected to the byepasses 15. To prevent rapid exhaustion of the reservoirs 17 on breakage of a cable sheath or joint casing, a restrictor 25 is placed between each reservoir 17 and the cable. The restrictor 25, Fig. 3, comprises a small bored copper tube coiled in a helix and terminates in casings 26 fitted with fine mesh screens 27 to hold up impurities which are removed by opening a drain 28. The helix may be coiled about a cylindrical drum. The restrictor 25 may be inserted in the byepass so that it is on one side only of the reservoir lead-in or it may be centrally placed. The cable is laid to follow the contour of the ground and the pressures in the reservoirs adjusted initially to give approximate balance, reservoirs attached to sections at lower altitudes having extra pressure equal to the static head of oil in the sections. On joining up the sections and opening the byepass, a small exchange of oil will take place between the sections until a sta-te of equilibrium is reached. Specification 340,614 is referred to. The Specification as open to inspection under Sect. 91 comprises also a statement that the byepasses may form traps to prevent contamination of the fluid in one section from entering a section connected thereto. This subjectmatter does not appear in the Specification as accepted.
Patent GB-332874-A (GB)
Title: Improvements in devices for cooking food by means of hot air
IPC: F24C15/32
Filed: 1929-12-16
Abstract: 332,874. Schmalwasser, J., and Weigle, J. Dec. 17, 1928, [Convention date]. Resistance ovens. - In apparatus for cooking by hot air, and in which the gas heating - elements l shown may be replaced by electric heaters, the air heated in the channels k is circulated upwardly through the cooking chamber b by a fan g arranged above a chamber e in which the hot air is mixed with adjustable quantities of fresh air. Dampers are provided to control the inlet of fresh air to the chamber e and also the outlet of air from an aperture in the top of the apparatus. Dampers c<1> control the air circulation from the lower ends of the channels k into the oven. Fat &c. is collected in a well or gutter s.
Patent GB-362184-A (GB)
Title: An improved high-voltage electric discharge rectifier having an incandescent cathode
IPC: H01J21/02
Filed: 1930-12-23
Abstract: 362,184. Discharge rectifiers. MœLLER, AKT.-GES., C. H. F., 24, F³hlsbuttelerdam, F³hlsb³ttel, Hamburg, Germany. Dec. 23, 1930, No. 38739. Convention date, Dec. 24, 1929. [Class 39 (i).] A high-voltage rectifier for use in R÷ntgen-ray installations comprises an anode 2, which is arranged within a conductive wall portion 1, formed of chrome iron &c., and an incandescent cathode 3 which is housed within the anode so as to shield the wall portion 1 from the electron discharge. As shown, the cathode comprises a ring-shaped helical filament 3, mounted within a pot-shaped tungsten anode, the wall of which is thick enough to prevent the passage therethrough of R÷ntgen rays. A plate 6 prevents the emergence of light or R÷ntgen rays through the lower end of the tube. The wall portion 1 may be maintained at earth potential.
Patent GB-1037997-A (GB)
Title: Drawing synthetic filaments
Inventor: MARRINAN HENRY JAMES
IPC: D02G1/16
Filed: 1962-10-16
Abstract: A process for drawing a yarn of undrawn synthetic linear polymer filaments between feed and draw rolls comprises elongating the filaments to at least twice their length while subjecting the undrawn filaments to a high velocity turbulent heated fluid stream which is capable of transferring sufficient heat to the individual filaments to localize the draw point, said fluid stream deflecting the individual filaments in the yarn from their paths and separating them from each other at a critical position where drawing is taking place so that there is substantially no coupling between the filaments at the draw point.  The undrawn state is defined in that the natural draw ratio at room temperature makes the filaments capable of elongating at least twice their length. The fluid stream may impinge at right angles, obliquely, or parallel to the filaments and may be arranged to exit preferentially at one end of a jet device so as to cause tension in the filaments.  The fluid stream may also be caused to heat the filaments beyond the draw point e.g. by use of a tube or shroud, and also to intermingle the filaments to form a cohesive yarn. The filaments before being wound may be subjected to a continuous crimping operation by e.g. false-twisting (see Specification 777,625) or by passage over a narrow surface (see Specification 1,028,979).  In one embodiment (Fig. 1 not shown) undrawn yarn 1 from spin bobbin 2 is passed from a feed roll 4 and idler roll 5 via a double air jet 6 to a draw roll 8 driven at a surface speed at least twice that of roll 4.  The yarn is wound up on draw twist bobbin 12.  The jet device is associated with air stream valve 7, electric heater 7a and reducing valve 7b.  If a crimped yarn is desired, a heated narrow surface may be located at B, C or D.  A heat-relaxing device in association with further sets of driven rolls may then be provided before wind-up.  If a false-twister is inserted at B to form the crimp, the false twist is prevented from running back into the draw zone by a pin or guide 13.  The fibre-forming polymers may be polyesters e.g. derived from terephthalic acid, polyamides e.g. nylon or polyolefines, in particular those containing 70-100% isotactic polypropylene.  In Examples, melt-spun polyethylene terephthalate yarn having a birefringence of 8.0 x 10-3 is heated, between feed and draw rolls, by a turbulent air jet at 120-320 DEG C. from a pressure vessel at 60 p.s.i.  Draw ratios of 1 : 3.34 are used at wind-up speeds of 1500 ft/min.  The amount of coherence of the filaments on the yarn brought about by the false-plaiting caused by the turbulent air stream is preferably 6-12 i.p.m. (as defined) but separation of the filaments by the air jets during drawing may also be achieved without causing coherence in the issueing yarn or tow (see Specification 758,398).
Patent GB-1241342-A (GB)
Title: Drawing board for preparing perspective drawings
Inventor: KLOK JOHN HENRY
IPC: B43L13/14
Filed: 1968-08-16
Abstract: 1,241,342. Perspective drawing appliances. J. H. KLOK. 16 Aug., 1968 [23 Aug., 1967], No. 39422/68. Heading B6P. A drawing board for preparing perspective drawings is provided with means whereby a straight edge can be oriented to selected vanishing points, and with perspective scales corresponding to the true width, depth, and height measurements of the object to be drawn, whereby by orienting the straight edge into line with one and the other vanishing points and with appropriate scale markings, and by moving the straight edge parallel to the side edges of the board to register with other scales, point on the drawing corresponding to points on the object can be obtained and the perspective drawing can be completed. As shown, a curved opening 22 is provided in the board 20 whereby a T-square with a suitably-curved head can be moved or oriented over the board in known manner so that the drawing edge of the square is always in line with a vanishing point 24 lying outside the board on an horizon line 35. Other vanishing points 25, 36, either one of which may be associated with the point 24, are marked on the board. The point 25 is situated beyond the drawing edge of the T-square and is constituted by a pin against which a straight edge can be engaged. Scales A, A1, A2 used with the points 24, 36 have markings corresponding to actual height, width and depth dimensions respectively of the object to be drawn but calibrated so that correct lengths of vanishing lines corresponding to the actual dimensions can be obtained. Similar scales E, E1, E2 are provided for the points 24, 25. A line EX on the scales E1, E2 corresponds to a line through a viewing point perpendicular to the horizon line 35. By setting the T-square in the opening 22 so that its edge passes through the height scale E at a graduation corresponding e.g. to the height of the top point on the object in the form of a building with its front corner on the line EX, a line through that graduation and point 24 can be drawn. The intersection of that line with line EX is marked and a line drawn between that mark and the vanishing point 25 the required point lying on that line. By using the bottom edge of the board as a guide for the T-square and aligning the straight edge of the square with the depth scale E2, the position of the point on the line from point 25 can be determined. Similarly the positions of other points can be marked and the drawing completed, the width scale being used for points to the left of the front corner. Other. scales G, G1, G2 and H, H1, H2 are associated with the points 24, 25 to produce different size drawings, and scales F are provided for interior drawings. Additional scales B, C, D are similarly provided for the points 24, 36. Scales 66 ... 68 are associated with a single vanishing point 33 for drawing a perspective view of e.g. the interior of a room. Another vanishing point 34 has associated scales J for making larger size single point perspective drawings.
Patent GB-1025236-A (GB)
Title: Process for the manufacture of dicalcium phosphate
IPC: C01B25/32
Filed: 1962-10-19
Abstract: Dicalcium phosphate, CaHPO4, is produced by causing a primary and/or a secondary alkali metal phosphate and/or ammonium phosphate as hydrate or in water solution to react with gypsum, whilst being mixed and comminuted, the other product being ammonia or an alkali metal sulphate.  The starting materials may contain impurities, e.g. an alkali metal sulphate, (NH4)2SO4, NaNO3 or KCl, provided these remain in solution on completion of the reaction. A suitable phosphate starting material is produced by interaction of a phosphate rock, a salt of a mineral acid, e.g. KCl, and another mineral acid, which is less volatile than the first, e.g. H2SO4, in about stoichiometric proportions, in a finely divided form, the resulting mass being heated to a temperature not greater than 1200 DEG  C., e.g. 200 DEG C., and the soluble phosphate extracted and possibly recovered by evaporation. Gypsum may also be produced in this process and after part of it has been removed the resulting mixture may be used in the reaction of the invention without further addition or separation of gypsum.  In carrying out the invention lime and/or limestone or Na2CO3 and/or NaOH solution may be added to the reaction mixture and if none of these is used it is preferable to start with a dialkali metal phosphate, prepared by neutralizing a mono alkali metal phosphate with NaOH.  The reaction may be carried out at 0-60 DEG C., pH 4-8, and the product used as fertilizer without separation or the phosphate filtered off, washed with water and dried.  In an example the dried dicalcium phosphate is granulated.
Patent GB-861515-A (GB)
Title: Improvements in or relating to timing circuits
IPC: G06F7/505
Filed: 1958-12-10
Abstract: 861,515. Telephone transmission systems. WESTERN ELECTRIC CO. Inc. Dec. 10, 1958 [Dec. 24, 1957], No. 39824/58. Class 40 (4). A circuit for timing an operation comprises a generator for cyclically generating a succession of code groups, a store into which is entered that code group occurring at the beginning of the operation, means for translating the code groups into groups corresponding to later positions in the cycle, and a comparator which upon receiving identical code groups from the store and the translator emits a signal to terminate the operation. As described, the successive code groups are binary representations of numbers 1 . . . 8 and the translator is a logic circuit whose binary output represents a member 2 more than its input. The invention is applied to the timing of a talker connecting signal in a TAS1 system such as that described in Specification 845,174. As shown identities, in the form of 7-digit binary numbers, of newly active talkers, are queried in a register 322 preparatory to insertion into a free time slot in a circulating store 309, which has a slot for every channel. A free channel is indicated by the digits 00 in the channel status portion of the store and when these are received by the translator 310, an output on lead 311 opens the switch 315 to admit the identity of a talker to the store and also to replace the 00 by 01. Simultaneously a three-digit binary number is admitted to the right-hand side of the store from a binary counter stepped once per millisecond by the oscillator 325 in an 8-millisecond cycle. This binary number is fed to the ADD 2 logic circuit 327 whose output feeds one side of the comparator 328. After 6 milliseconds the output of the logic circuit will be identical with that originally stored in the circulating memory. The latter circulates at 8 revolutions per millisecond so that the contents of all its time slots are compared with the each output from the logic circuit, and when identity is obtained the comparator emits a signal on lead 329. Meanwhile, with 01 in the channel status portion, translator 310 when fed from this time slot opens switch 333 to feed the talker identity to a " connect " signal source 323, which emits pulses on 324 modulated by combinations of seven tones in accordance with the talker's identity. These are fed over the assigned channel to the receiver as described in Specification 845,174. At the end of 6 milliseconds the output on lead 329 causes the substitution of 11 for 01 in the channel status portion of the memory to terminate the " connect " signal. The remainder of the operation is as described in Specification 845,174. Specification 781,622 also is referred to.
Patent GB-1194215-A (GB)
Title: Improvements in or relating to Multi-Cell Electrical Accumulators.
IPC: H01M50/147
Filed: 1967-09-01
Abstract: 1,194,215. Topping-up accumulators. ROBERT BOSCH G.m.b.H. 1 Sept., 1967 [6 Sept., 1966], No. 40061/67. Heading H1B. A storage battery comprises a housing having a cover, at least one tubular vent extending through the cover, and at least one fluid inlet aperture in the cover associated with each cell and communicating with a common fluid reservoir, the exit of each aperture within the housing being at a higher level than the lower end of the, or each, vent. In a particular embodiment, Fig. 1, a single cell of a 6-cell accumulator is enclosed by container 10 and cover 11, the cover being shaped into a filling trough 16 extending over all the cells and having an inlet 17 and a vent 18 to each cell, each vent being out 14 mm. wide to accommodate a device for measuring the S.G. of the electrolyte. The cell may be topped up with distilled water until the electrolyte level reaches the bottom of vent tube 18. The filling trough is itself filled via passage 20 and the trough and passage are covered by a second cover 21 of polypropylene. The cover is hinged at 26 so that in the position shown the projecting piece serves as an extension of the passage 20 but can also be turned over and inwards to close the entrance to passage 20. The cell inlets 17 may be slots of up to 3 mm. width or round holes of up to 5 mm. in diameter.
Patent GB-960650-A (GB)
Title: Improvements in or relating to electric switches
Inventor: ROBINSON CHARLES
IPC: H01H23/20
Filed: 1961-11-09
Abstract: 960,650. Snap-action switches. WARD & GOLDSTONE Ltd. Feb. 7, 1963 [Nov. 9, 1961], No. 40120/61. Heading H2B. In a switch comprising a double ended rockable dolly 31, a contact bar 21 carrying a contact 25 is pivoted in grooves 15 in a stamping 13, with an extension 19 of the stamping passing through a slot 20 in the bar 21 and supporting one end of a tension spring 23, the other end being attached to the bar 21. The dolly 31 is pivoted in grooves 16 in the stamping and held in place by a spring 34 supported between a cross-pin 35 and the extension 19. When the dolly is pivoted, one end engages and depresses the bar 21 until the tension spring 23 moves over centre and snaps contact 25 into engagement with fixed contact 26. The stamping 13 and extension 19 are connected, by a lug 17, to a terminal 18. The switch may be a double-pole (as shown) or single pole switch.
Patent GB-1113292-A (GB)
Title: Improvements in or relating to methods of manufacturing pole shoe units for magnetic heads
IPC: G11B5/235
Filed: 1965-09-21
Abstract: 1,113,292. Making magnetic recording &c. heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 21 Sept., 1965 [22 Sept., 1964], No. 40186/65. Heading G5R. To make batches of record/playback heads with closely controlled gap-lengths in the order of 1Á: (1). A block, Fig. 1, of ferrite is polished on face 2. (2). A mask with rectangular slots 4, Fig. 3, is assembled over the face 2, Fig. 3. (3). Metal is deposited as vapour, or preferably by cathodic sputtering to provide shims 5, whose height t is the desired gaplength, the mask is then removed to leave a block and shims, Fig. 4 (not shown). (4). A second block 6, polished on the face 7 is assembled over the block 1, and the two joined by fusing glass, enamel or solder into the interstices 8. (5). The blocks are sliced by a cutter of width 10-11 which entirely removes the shims 5. (6). The slices are each assembled to a headcore structure of conventional form (Fig. 6, not shown). The blocks 1, 6 may each carry a set of shims and be assembled with the two sets aligned.
Patent GB-900599-A (GB)
Title: Improvements in dishwashers
IPC: A47L15/42
Filed: 1959-11-27
Abstract: 900,599. Dish-washing machines. GENERAL MOTORS CORPORATION. Nov: 27, 1959 [Feb. 9, 1959], No. 40375/59. Class 138 (1). A dish-washing machine has a single-reversible pump impeller which when rotated in one direction pumps liquid from a sump of a wash,- ing chamber on to dishes in the chamber, and when rotated in the opposite direction pumps liquid from the sump through a drain outlet to a drain: 'The impeller 64, Fig. 1, is driven by a reversible electric motor 44, and when driven in one direction draws liquid from a sump at the bottom of the washing chamber 18, and pumps it through a conduit 50 to a rotary perforated spraying tube 32. The connection between the conduit 50 and the tube 32 is such that the liquid is swirled to rotate the tube 32. The impeller 64, Fig. 5, comprises a disc 124 having vanes 128 inclined over apertures 136 in the disc, so that on clockwise rotation the vanes 128 raise the liquid into the conduit 50, and on counterclockwise rotation the vanes direct the liquid through apertures 136 into the drain. The machine is controlled by an electric timing device which on being energized by manual closing of a switch, opens a solenoid valve to admit liquid to the chamber 18, and closes a motor switch to rotate the impeller for pumping liquid to the sprayer 32. At the end of the washing period the timing device reverses the motor to drain the chamber 18. A drying period is then initiated by the timing device which energizes an electric heater 76 whilst the impeller 64 continues to rotate to draw air through an opening 200 in the bottom of the chamber door 20, and through louvres 198 and over the dishes in baskets 80, 82, and to discharge it through the lower compartment 24. In a modified construction the impeller is provided with teeth for comminuting the solid material passing to the drain, a strainer arranged above the impeller being raised to an inoperative position by a spring when the impeller is rotated in the draining direction.
Patent GB-1180244-A (GB)
Title: Improvements in or relating to Elevators for Material Lifting Apparatus
Inventor: HALLETT GEORGE DESMOND
IPC: B65G65/06
Filed: 1967-09-05
Abstract: 1,180,244. Sludge removal apparatus. NORSTEL & TEMPLEWOOD HAWKSLEY Ltd. 5 Sept., 1968 [5 Sept., 1967], No. 40606/67. Addition to 1,098,531. Heading B8E. [Also in Division E1 The sludge removing apparatus of Specification 1,098,531 is modified so that the sludge elevator 45 discharges on to the same discharge conveyer 32 which feeds a conveyer 29 running to the end of the gantry 21 for discharge over one wall 19 or 20. The elevator 45 is mounted on a carriage 24 which runs along the gantry 21 and comprises slats 46 on chains running in a casing 41 and over wheels 49-51 to provide horizontal runs 52, 53 over the conveyer 32. When the elevator is running so that the run 53 is discharging the sludge is guided to the conveyer 32 by side walls 56, 57 of a shoot while if the run 52 is discharging a guide 58 directs the sludge to the conveyer 32. A cutting device 47 feeds the sludge to the elevator and is automatically reversible at the end of the carriage movement on the gantry 21 together with reversal of the elevator chain movement. At an end of the gantry a roller 93 or 94 runs on to a cam 90 to move one of the levers 95, 96 to operate switches to raise the elevator from the bed at the end of which movement the actuated lever 95 or 96 will engage a cam 65 to reverse the cutting .device 47. A bed sanding or a coultering attachment may be attached to the elevator device or directly to the carriage 24.
Patent GB-1117943-A (GB)
Title: Improvements in connectors for connecting hose-pipes to water supply taps or the like
Inventor: COLEMAN ROY MAURICE
IPC: F16L17/025
Filed: 1965-09-24
Abstract: 1,117,943. Hose couplings. SMITH & DAVIS Ltd. 21 Oct., 1965 [24 Sept., 1964], No. 40729/65. Headings F2G and F2H. A socket member 20 of rubber has internal annular ribs which are deformed to form a fluidtight seal with a spout 12 by the radial contraction of a number of fingers 46 integral with a body 16 and forming a housing in which the member 20 is received, the fingers being contracted by the frusto-conical seat of a nut 18 screwed on to the body. The nut and body are moulded acrylonitrile butadiene styrene copolymer, or an acetal resin or nylon.
Patent GB-1156858-A (GB)
Title: Stabilized Polymer Compositions and Method for Making
Inventor: ZIMMERMAN ROBERT LANE
IPC: C08F8/00
Filed: 1967-09-06
Abstract: 1,156,858. Coated substrates. DOW CHEMICAL CO. 6 Sept., 1967, No. 40749/67. Heading B2K. [Also in Division C3] Articles of steel, aluminium and wood are coated with stabilised curable composition prepared by heating a carboxyl groups containing polymer in the presence of an ethylenically unsaturated compound, which is reactive with the carboxyl groups, until a majority or all of the carboxyl groups be esterified, a curing agent being added to the composition prior to or after heating. The polymer may be a copolymer of styrene and iscoctyl acid maleate, or of n-butyl acrylate, methyl methacrylate and acrylic acid. The unsaturated compound may be a vinyl ether e.g. ethyl, butyl or isobutyl; isobutylene, diisobutylene, limonene, 2, 3-dihydropyran or 2, 3-dihydrofuran. The curing agent may be a polyepotide.